Open Mapping Considered Harmful

If you want further proof that openness is inherently subversive, try this:

China's Bureau of Surveying and Mapping (BSM) has warned foreigners to turn off the GPS functions on their mobile phones, or risk arrest.

The bureau warned foreigners using GPS devices on mainland China that they could be detained if suspected of conducting illegal mapping.

The bureau has launched a crackdown on “illegal surveying”, the South China Morning Post reported, with foreigners the main targets.

Hmm, nobody seems to have told the OpenStreetMap people, who are merrily mapping China.... (Via James Fallows.)

Follow me @glynmoody on Twitter or identi.ca.